Product Description:
Flowserve valve positioners are advanced electro-pneumatic devices designed to guarantee the precise positioning of the final control element, which is typically a valve. These devices play a crucial role in ensuring that the valve moves to the desired position specified by a process controller. By converting a standard input signal, such as 4-20 mA, into an exact pneumatic output pressure, they effectively trigger the valve's action. This helps overcome stem friction and other dynamic forces, ultimately leading to superior control accuracy in industrial processes.
The primary function of Flowserve valve positioners is to interpret the input signal accurately and convert it into a pneumatic output that drives the valve accordingly. By doing so, these intelligent devices facilitate smooth and precise valve movements, which are essential for maintaining optimal process performance and control. The ability to translate the input signal with precision ensures that the valve responds promptly and accurately to the commands issued by the process controller, enhancing overall operational efficiency.
Features:
High Accuracy & Repeatability:
Ensures precise valve positioning (< ±0.5%) for improved process control.
Advanced Digital Communication:
Supports HART, Foundation Fieldbus, and Profibus-PA protocols for seamless integration into digital control systems.
Robust Construction:
Features rugged housing (e.g., NEMA 4X / IP66) and corrosion-resistant materials for harsh environments.
Intuitive Diagnostics:
Built-in monitoring of travel, pressure, and supply air provides predictive maintenance data and reduces downtime.
One-Button Auto-Calibration:
Simplifies setup and commissioning, reducing human error and time.
Selectable Valve Characterization:
Allows for in-field selection of flow characteristics (Linear, Equal %, Quick Open).
Hazardous Area Certified:
Approved for use in explosive atmospheres (ATEX, IECEx, FM).
Low Air Consumption:
Optimizes plant energy usage.
Technical Parameters:
Input Signal:
4-20 mA, HART; Digital (Foundation Fieldbus, Profibus-PA)
Supply Pressure:
1.4 - 7 bar (20 - 100 psi)
Output Pressure:
0 - 100% of supply pressure
Accuracy:
< ±0.5% of span
Enclosure Rating:
IP66/67, NEMA 4X
Ambient Temp. Range:
-40°C to +80°C (-40°F to +176°F)
Mounting:
Direct to ISO 5211, NAMUR standard
Certifications:
ATEX, IECEx, FM, SIL 2/3 (model dependent)
Applications:
Flowserve positioners are utilized in a diverse range of challenging applications across various industries:
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Oil & Gas:
They are commonly found in production platforms, refineries, and pipelines.
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Chemical Processing:
Flowserve positioners play a crucial role in reactor feed control and batch processes.
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Power Generation:
They are essential for applications such as boiler feedwater control, turbine bypass, and fuel control.
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Water & Wastewater:
Flowserve positioners are used for flow control and precise chemical dosing in treatment processes.
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Pharmaceuticals:
In the pharmaceutical industry, they are utilized for precise batch operations and clean-in-place (CIP) processes.
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Pulp & Paper:
Flowserve positioners are integral to operations such as chemical recovery and stock preparation within this sector.
Support and Services:
Our Product Technical Support and Services for Valve Accessories include:
- Assistance with installation and setup of valve accessories
- Troubleshooting and diagnosis of technical issues
- Guidance on maintenance and repair of valve accessories
- Product training and education for optimal usage
- Product documentation and resources for reference
Packing and Shipping:
Product Packaging for Valve Accessories:
The valve accessories are carefully packaged in a sturdy box to ensure their safe delivery. Each accessory is individually wrapped and cushioned to prevent any damage during transit.
Shipping Information:
We offer fast and reliable shipping options for our valve accessories. Orders are typically processed within 1-2 business days and shipped using reputable carriers to ensure timely delivery to your doorstep.
